Basic Hearing Aid Battery Care Tips
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  • Post published:September 12, 2020
  • Post category:Hearing Aids
  • Post last modified:September 13, 2020

Depending on the type of batteries your hearing aid has, you may experience a widely different hearing aid battery life compared to someone else. Hearing aid batteries vary just as much as any other electronic.

For instance, one cell phone battery may not need to be charged for a couple of days, whereas another model may need daily charging. Even products from the same manufacturer vary widely. The same is true of hearing aids batteries. If you’re asking, how long do hearing aid batteries last, it’s tough to give you a straight answer as it depends on the type of batteries and how much you use your hearing aids.

Everyone wants to get the longest life possible from their batteries for many reasons. It’s inconvenient to replace batteries every three or four days. Plus, batteries cost money. The worse the battery life is on your hearing aids, the more often you have to spend money, and the more inconvenience you encounter. That’s why learning how to improve your hearing aid’s battery life is beneficial.

Types of Hearing Aid Batteries

Types of Hearing Aid Batteries

Hearing aids can use one of the two main types of hearing aid batteries—rechargeable batteries or standard disposable batteries. Often, rechargeable batteries only come in behind-the-ear hearing aids. That’s because they don’t fit well in the small, in-the-ear hearing aids.

Rather, these types of batteries are better suited to the behind-the-ear hearing aid size. These rechargeable hearing aid batteries do not last as long because they’re meant to be recharged every night. They’re not meant to be worn for long stints.  

A standard battery has a much different battery life compared to rechargeable batteries. However, these batteries also come in vastly different sizes. 

Users can buy four main sizes, which come color-coded, so users can have confidence in the type of battery they already have and that they need. Ranked by battery life from lowest to highest, sizes are 10, 312, 13, and 675. Respectively, the colors are yellow, brown, orange, and blue. These

Hearing Aid Battery Life Expectancy

If you use a size 10 battery, the smallest available, you can expect the batteries to last anywhere between 3-7 days. A size 312 battery will last between 3-10 days. Size 13 batteries last 6-14 days. Lastly, the 675 batteries last between 9-20 days. 

The battery life of each size of the battery can vary widely depending on the type of hearing aid it’s used in. For instance, a larger hearing aid that is used by someone with severe hearing loss may require more power to use. Thus, that battery may not last as long as the same type of battery used in a hearing aid for someone with only moderate to mild hearing loss.

Furthermore, some hearing aid users may not wear them throughout the full day. Rather, they may only use them in loud environments where their hearing is more strained. In that case, the user would expect to use their hearing aids longer before needing to change them compared to someone who uses hearing aids all day.

How Often Do You Change Hearing Aid Batteries?               

How often you must change your hearing aid batteries depends on many things, as noted. Most users can go about a week before having to change the batteries. Thus, it’s up to the individual to determine when they should act.

If you notice the quality of your hearing aids dipping, it might mean it’s time to change the batteries. Either the sounds become distorted or the sound level is lowered, and the hearing aids don’t offer the same utility as you know they should.

Some hearing aids may offer a warning sign, like a beep, that indicates the battery is getting low. Once you hear this beep, you should change the batteries; there’s not much use in wearing hearing aids that lose their effectiveness. Plus, once the batter begins to get low, they will die quickly.

Extending the Life on Hearing Aid Batteries

Extending the Life on Hearing Aid Batteries

Hearing aid batteries come with a tag on the battery which must be removed before use. Once you take off the tag, the battery activates. This is because the batteries are zinc-based. When the tag is removed, the zinc oxide within the batteries mixes with oxygen activating the battery.

Many hearing aid users simply take off the tag and place the battery directly into their hearing aids. However, this doesn’t give the battery ample time to activate. Rather, if you wait 5 minutes, after taking off the tag, to put in the battery, the battery life should be extended. This wait time allows the zinc oxide to fully react with the environmental oxygen.  

Another great battery care tip is to open the hearing aid battery doors at night. This act allows the battery power from being dissipated without use. Moreover, opening the doors also any moisture inside the door to evaporate, thus helping save the life of the battery.

When you’re not using your hearing aids, likely overnight, store your hearing aids somewhere that’s room temperature. Many bathrooms have higher temperatures than a bedroom, for instance, which may affect the hearing aid’s battery life. Some people have tried storing their hearing aids in a cold environment, but that also reduces battery life. The cold temperature creates condensation which can degrade the battery.

When you aren’t using your hearing aids, turn them off. This helps conserve power. If the hearing aids were to be left on when not in use, the battery’s power would be wasted.  

Frequently Asked Questions

Why Do Hearing Aid Batteries Die So Quickly?

Many people use their hearing aids more than 12 hours per day, which takes lots of power. Furthermore, some hearing aids require lots of power to implement new functionality like smartphone connection, Bluetooth connection, and more.

Which Brand of Hearing Aid Batteries Last the Longest?

The life of hearing aid batteries are tough to judge, considering the different hearing aids, technology, and hours of use on each. Most reviews claim that either Rayovac, Duracell, and Panasonic create the best batteries.

Which Hearing Aid Battery Lasts the Longest?

The 675 size battery lasts the longest, followed by 13, 213, and 10.

Josh Roberts

Josh spent many years of his life working in an industrial environment where hearing protection is paramount to workplace safety. Since then he has been on a mission to share how important taking care of your hearing is for living a great life.

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